A sensor network consists of multiple detection stations called sensor nodes, each of which is small, lightweight and portable. Every sensor node is equipped with a transducer, microcomputer, transceiver and power source. The transducer generates electrical signals based on sensed physical effects and phenomena.
How do sensors communicate?
The sensor nodes can communicate among themselves using radio signals. A wireless sensor node is equipped with sensing and computing devices, radio transceivers and power components. Wireless sensor devices also respond to queries sent from a “control site” to perform specific instructions or provide sensing samples.
What is sensor network and its applications?
Generally, WSN could be defined as a small system of nodes which accommodatingly sense, monitor, capture, process and control situations such as data/signals around an application, supporting dealings between peoples/computer systems and the immediate surrounding [12, 13, 14].
What is sensor network in IoT?
A sensor network connects numerous sensor nodes that can detect information such as heat, pressure, and motion. With the rapid development of sensors, sensor networks are a vital part of the internet of things (IoT) and the modern world.
Where are sensor networks used?
Such networks are used in industrial and consumer applications, such as industrial process monitoring and control and machine health monitoring. A WSN is built of "nodes" from a few to hundreds or thousands, where each node is connected to other sensors.
What is typical sensor network?
Typically a wireless sensor network contains hundreds of thousands of sensor nodes. The sensor nodes can communicate among themselves using radio signals. After the sensor nodes are deployed, they are responsible for self-organizing an appropriate network infrastructure often with multi-hop communication with them.
Which topology is used in wireless sensor network?
star network topology
What are the applications of sensor networks?
Sensor nodes are used for constant sensing, event ID, event detection & local control of actuators. The applications of wireless sensor networks mainly include health, military, environmental, home, & other commercial areas.
What is wireless sensor network explain with sample applications?
Wireless Sensor Networks (WSNs) can be defined as a self-configured and infrastructure-less wireless networks to monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants and to cooperatively pass their data through the network to a main location or sink where
What are the components of a sensor?
Sensors, in their most general form, are systems possessing a variable number of components. Three basic components have already been identified: a sensor element, sensor packaging and connections, and sensor signal processing hardware.
What are the five main components of basic sensor node?
The main components of a sensor node are a microcontroller, transceiver, external memory, power source and one or more sensors.